• Tonight

    Jul 11

    Lo 13°

    Mainly clear

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
  • Sat

    Jul 12

    29°Lo 16°

    Partly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Sun

    Jul 13

    26°Lo 18°

    Rain and a thunderstorm

    Low ragweed pollen levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Mon

    Jul 14

    27°Lo 15°

    A shower or t-storm in spots

    Low ragweed pollen levels
    • Precip
      50%
    • Wind
      Speed
      5 k/h
    • Cloud
      Cover
      74%
    more
  • Tue

    Jul 15

    24°Lo 13°

    A thunderstorm possible

    Ragweed Pollen Weather
    • Precip
      30%
    • Wind
      Speed
      13 k/h
    • Cloud
      Cover
      70%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Fri
8am
9am 10am 11am 12pm 1pm 2pm 3pm
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Forecast
Sunny
Sunny
Partly Sunny
Partly Sunny
Mostly Cloudy
Partly Sunny
Mostly Cloudy
Partly Sunny
Temp (°C) 16° 19° 22° 23° 24° 23° 25° 25°
RealFeel® 18° 20° 25° 27° 26° 27° 26° 27°
Humidity 81% 73% 63% 51% 44% 47% 38% 41%
   
  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Rain
 
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Snow
 
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Ice
 
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  8am 9am 10am 11am 12pm 1pm 2pm 3pm
Wind (km/h) 0 5 SSW 5 N 5 S 6 WSW 8 SW 11 SW 10 N
UV Index 2 3 4 6 5 7 5 6
Cloud Cover 0% 0% 35% 35% 75% 35% 75% 35%
Dew Point 13° 14° 15° 12° 11° 11° 10° 11°
Middle Grid line 30 C Middle Grid line 25 C Middle Grid line 20 C Middle Grid line 15 C

Temperature History - Jul 11

more Historical Weather Data >
  Today Normal Record 7/11/2013
High 26° 26° 33° (2005) 27°
Low 13° 15° (1945) 15°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:25 AM with 15:26 of sunlight, then sets at 8:51 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:54 PM with 9:54 of moolight, then sets at 5:48 AM

Top Story

Ottawa Weather Report

Long-Range Pattern Update

July 11, 2014; 11:05 AM ET

Pattern of extremes into next week and a look at August. more >